And arthur w



Jan. 22 1924.

. I MAM WW F. T. DE LUNG ET AL BRAKE BEAM SUPPORT Filed Aug. 31, 1.922

2 She 'EmShee'I; l

Jam. 22 1924. f 1.481.540

F? 1'. DE LONG ET AL BRAKE BEAM SUPPORT Filed Aug 31 1.922 2 Sheets-Sheet 8 Patented Jan. 22, 1924.

UNITED STATES FREDERIG '1'. DE LONG, OF CHICAGO, ILLINOIS. AND ARTHUR VJ. HAWKINS, 01? MUSKIE- 1,481,540 PATENT OFFICE.

GON, MICHIGAN, ASSIGNORS TO CHICAGO RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 075 ILLINOIS.

BRAKE-BEAM SUPPORT.

Application filed August 31, 1922 Serial. No. 585,509.

To all whom it may concern:

Be it known that we, FREDERIO T. Du LONG and ARTHUR W. HAWKiNs, citizens of the United States, residing at Chicago, Illinois, and Muskegon, lVlichigan respectively,

have invented a certain new and useful Improvement in Brake-Beam Supports, of

which the-following is a full, clear, and

exact description, such as will enable others 1 skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this application.

Our invention relates to railway rolling stock and consists in an improved third or fourth point support for brake beams.

The general object of our invention is the usual one of providingagainst dropping of the beam upon the rail, and the special objects of our invention are to combine a safety guard with means which maintain the inclination of the beam with respect to.

the wheels irrespective of wear on the brake shoes and wheel tires, and to provide a brake release.

In the accompanying drawings which. illustrate a selected embodiment of our invention and a number of modifications-- Figure 1 illustrates a preferred form and shows the spring plank of a truck and the brake beam in section with our improved support applied thereto.

Figures 2 to 8 illustrate modifications which will be referred to later.

Our support consists essentially of two pieces one to be mounted upon the brake beam 1 and the other to he fixedly carried by the truck and preferably mounted upon the spring plank 2. In Figure 1 the beam element is indicated as a strip 3, preferably of spring material and enclosing one or more of the brake beam members, but of. whatever material. or how secured to the brake beam extending downwardly and rearwardly beneath the spring plank,

The spring plank member 4.- essentially consists. in an inclined bearing for, element 3 and in the preferred form comprises a combined flat and roller bearing. Member 4; is shown as havingflat surfaces 5 spaced from each otherand inclined to correspond to the inclination of element 3 and aligned with these surfaces are the adjacent sides of rollers 6 rotatably mounted upon one or more flanges 7 formed on member 1- inte member 4: far enough to accommodate and seat a compressed spring 11, the other end of which is seated against the face of member 4:. This spring yieldingly resists the application of the brakes and serves to release the brakes when the air pressure in the brake cylinder is released. The spring construction of member 3 yieldingly resists rotation of the brake beam about its axis. In this form, roller 6 dissipates most oftho friction produced by reciprocal movement of the element 3 and bearing surfaces 5 serve largely to guide the element.

In Figure 2 a modification is shown in which element 12, corresponding to element 3 in Figure 1, is rigid and slotted at 13 so as to be mounted upon a single roller element 14. In this form, the yielding resistan e to rotation of the beam is provided by a spring 15 which also serves as a guide for element- 12 corresponding to the surfaces 5 of member 4 in Figure 1. a

In Figure 3, an end roller supporting bearing 16 is shown the other element of the bearing consisting; of an adjustable shoe 17 which may be adjusted vertically by a set screw 18 provided with a lock nut 19. In this form, the spring plank member is rigidly secured to the spring plank. In this construction the brake beam element 20 consists of one piece enclosing the compression member 21. of the brake beam and may be either flexible or rigid according to whether or not it is intended to accommodate the rotation of the brake beam.

In Figure 4- the brake beam and spring plank members are combined in a single strip of flat spring-like material having a return bend formed therein. whereby the strip crosses itself at 22, the vertical portion fbeing slotted to receive the inclined brake beam sup Qrting portion. A l1elix23 may be formed in the member to increase its elasticity. In this form, both rotation of the brake beam and brake setting travel of the latter are yieldingly resisted."

"In Figure 5the beam element 24 is shown as positioned above the compression mem' ber of the beam but extending downwardly and rearwardly through a slot in the vertical portion oi a spring plank member 25 which extends above -theupper surface of the spring plank and is bent back over the spring plank to provide a sliding bearing for the beam element 24:. It will be understood that the parts may be inverted without affecting their operation, although various circumstances may ,make the upper position of the support p referable to a subspring plank construction an example of which is, shown in Figure 6 inwhich the element 2,6, embracing the compression memberl ofthe beam, extends downwardly and rearwardly from the lower edge of .the beam. The spring plank member 27 has a hooked portiohZS engaging the flange ot the spring plank and a bearing portion 29 just under the spring plank. In both of these terms the element secured 'to the brake vbeam may be either yielding, or rigid although the yieldin form iS preferred.

en ol; e modification is shown in Figure 7 n the element 30 is rigid and he spring plank m m e is yum;-

se-s 39 extend t ltnh an el nga ed lo n member Bland only upports'the be n 3 eme t at one xtr me ,oflthe la e i travel; yield n lyrsist tu ng m r me at t eme l tim construction shown in Figure .8 the b am w re is 32 o s t er 129 i rnort the brake beam but its engagement with the underside-of the spring plank, whether the v 1s proyided with an additional hearing member one, w l p e r te i n 01 Webke ee pon it a s. an assum the even application ot the brake shoe to the wheel, irrespec ive of they thickness of the h o the diam te f t e r s B am 91 i 32 m y be ither rigid of sp n e ial depending 01,1 whether or not the gi ideis intended to be yielding.

- varioils other modifications will suggest themseves. to those familiar with the art nd will be prod ced in the commercial deearne t o ou finve tion and We con emee all such a a W th n the scope ei hear ant/e ai i Y, 6, c a m: i a 1. A brake beam support comprising a member to be secured to the truck spring plank,- and an element to be secured to the brake. beam and slidably mounted in said member; i Ate??? been air o t; c mpr s g- 1- member to be secured to the truck spring-f plank, and an element to secured to the brakebeam, to extend downwardly and rear wardly therefrom, and to be slidably mounted in said member.

3. A brake beam support comprising a member to be secured to the truck spring plank and provided with an inclined hear ing and an element to be secured to the brakc beam and mounted to slide on said. bearing.

4. A brake beam support comprising a member to be secured to the truck spring plank, and a yielding clement secured to the brake beam and slidably mounted in said member.

A. brake beam support comprising a member to be secured to the truck spring plank, and an element rigid lengthwise and yielding transversely oi its length and mounted in said member to slide longitudinally of its length.

6. In a brake beam support, an inclined element secured to the brake beam, and a fixed member in which said element is mounted to slide in the direction of its inclination.

7. In a brake beam support, an inclined element secured to the brake beam, and tixed bearings for said element spaced longitudinally of the axis thereof in which said element is slidably mounted.

8. In a brake beam support, an inwardly and downwardly inclined element secured to the brake beam, and a member to be mounted on the truck spring plank provided with a bearing for said element, said element and member being adapted to yieldingly resist rotation of the brake beam.

9.In a brake heam support, an inwardly and downwardly inclined element secured to the brake beam, member to be mountmi on the truck spring plank, provided with a hearing for said element, said element and member being adapted to yicldingly resist rotation of the brakebeam, and means ,for yieldingly resisting the application of the brak ;LO. In a brake beam su iport, an inwardly and downwardly inclined element secured to the brake beam, and a member mounted on the spring plankprovided with hearings spaced transversely of said element and receiving the latterbetwccn them. i i

i 11. In a brake beam support, an inwardly and downwardly inclined element secured to and an element mounted on the truck. spring plank and providing a similarly inclined bearing for said iirst-mcntioned member.

123. in a combined brake beam support and release, a bracket on the truck spring}; plank, a beam engaging member slidably mounted in said bracket, and means yieldingly thrusting said member toward one end of its sliding movement in said bracket.

14rlIn a combined brake beam support and release, a bracket on the truck spring plank. a beam engaging member slidably mounted in said bracket and extending rearwardly therefrom, and a spring compressed between said bracket and the rear end o1 said member.

15. In a brake beam support, an element extending downwardly and rearwardly from the brake beam, and a member mounted upon the spring plank and comprising cooperating flat and. roller bearings for said element.

16. A brake beam support comprising a member to be secured to the truck spring plank and provided with an inclined bearing and an element to be secured to the brake beam and mounted to slide on said bearing, and means for adjusting the inclination of said bearing.

17. In combination with a brake beam and a truck, a member secured to the brake beam axtending downwardly and rearwardly therefrom beneath a fixed element carried by the truck, having sliding engagement with said elen'ient and adapted. to maintain a predetermined relative angle between the beam and the wheel to which it applied.

15%. in rombination with a brake beam and a truck, a member 01. yielding material secured to the brake beam and extending downwardly and roarwardly therefrom beneath a iii-Led element mounted on the truck, t upper face of said member having sliding engagement with the underside of said element whereby tilting of the beam about its axis is yielding-1y resisted.

19. lin combination with the brake beam and spring plank oi? a truck, a member secured to the brake beam and extending toward the spring plank, and a pair of rollers mounted on the spring plank and spaced transversely of said member and adapted to receive the latter between them.

20. In a brake beam, a downwardly and rearwardly extending element adapted to contact with a fined truck element to maintain a predetermined inclination of the beam.

21. In a brake beam, a downwardly and rearwardly extending element adapted to contact with a fixed flexible truck element to yieldingly maintain a predetermined inclination of the beam.

In testimony whereof we hereunto aiiin our signatures the 10th and 8th days of August, 1922, respectively.

FREDERI'O 1. DE LUNG. ARTHUR W. HAWKINS. 

